US4352568A - Twin-screw machine with screws rotatable in the same direction - Google Patents

Twin-screw machine with screws rotatable in the same direction Download PDF

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Publication number
US4352568A
US4352568A US06/248,118 US24811881A US4352568A US 4352568 A US4352568 A US 4352568A US 24811881 A US24811881 A US 24811881A US 4352568 A US4352568 A US 4352568A
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US
United States
Prior art keywords
housing
kneading
discs
zones
twin
Prior art date
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Expired - Lifetime
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US06/248,118
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English (en)
Inventor
Karl-Dieter Lohr
Martin Ullrich
Erhard Tresper
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Bayer AG
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Bayer AG
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Assigned to BAYER AKTIENGESELLSCHAFT, A GERMAN CORP. reassignment BAYER AKTIENGESELLSCHAFT, A GERMAN CORP. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: LOHR KARL-DIETER, TRESPER ERHARD, ULLRICH MARTIN
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/73Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with rotary discs
    • B01F27/731Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with rotary discs with two or more parallel shafts provided with perpendicularly mounted discs, e.g. lens shaped, one against the other on each shaft and in circumferential contact with the discs on the other shafts, e.g. for cleaning
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00Mixing; Kneading
    • B29B7/30Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/48Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
    • B29B7/482Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws provided with screw parts in addition to other mixing parts, e.g. paddles, gears, discs
    • B29B7/483Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws provided with screw parts in addition to other mixing parts, e.g. paddles, gears, discs the other mixing parts being discs perpendicular to the screw axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • B29C48/402Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders the screws having intermeshing parts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50Details of extruders
    • B29C48/505Screws
    • B29C48/57Screws provided with kneading disc-like elements, e.g. with oval-shaped elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion

Definitions

  • the invention relates to a twin-screw machine, the screws of which can rotate in the same direction, for melting, mixing, dispersing, shearing and imparting energy, consisting of a housing which has a figure-eight cross-section and contains circular eccentrically arranged kneading discs which can be rotated.
  • Circular eccentric discs are known wherein the discs are displaced relative to one another in a spiral staircase fashion and are fixed to shafts running along the two axes of the circular sections of the housing, the eccentric discs almost touching one another and the wall of the housing along a wavy line.
  • the main object of the present invention is to provide a screw machine, with low wear, for plasticizing under conditions which do not harm the material while subjecting the entire volume of material to uniform shearing stress.
  • this object is achieved by a machine wherein: the clearance ( ⁇ ) between the eccentric discs and the wall of the housing is greater than the clearance (s), which is constant during the rotation, between the two kneading discs; and the eccentricity (e), which is in each case of like orientation, from the central point of the housing to the central point of the kneading disc is greater than zero and less than half the absolute difference between the two diameters (d h , d e ) minus the clearance (s): ##EQU1##
  • the new device forces the product paths perpendicular to the conveying direction to be longer. Greater rearrangement of part amounts, together with an improved mixing effect, are thereby achieved with virtually the same average residence time.
  • the device according to the invention provides another advantage in the field of melting.
  • the envisaged opening of the groove gap diminishes the compressive and radial forces effective between the surfaces of the solid and of the metal, in favor of shearing forces.
  • the material to be processed is thereby melted more uniformly and under more gentle conditions and metallic contact between the surfaces of the screws and of the housing is avoided. As a result there is less wear and a longer life of the apparatus is achieved.
  • single-flight or multi-flight screw threads are combined with zones of kneading discs, the free space cross sectional area between the kneading discs and housing being reduced in each case relative to that of the screw threads.
  • a more concentrated filling and a more intense compression of the product are achieved by reducing the cross-sectional area of the product in the region of the kneading discs relative to that in the region of the screw thread.
  • zones of kneading discs are combined with zones of eccentric discs which almost scrape the walls.
  • This device combines the mixing and kneading advantages of the eccentric zone according to the invention with the good conveying properties of known eccentric discs which scrape the walls.
  • FIG. 1 shows a cross-section through the kneading disc and housing according to the invention
  • FIG. 2 shows a longitudinal section through the kneading disc according to the invention
  • FIG. 3 is a schematic representation of another embodiment according to the present invention.
  • FIG. 4 is a schematic representation of still another embodiment of the present invention.
  • FIG. 1 shows two circular kneading discs 1 each having a diameter de in a housing 2, the cross-section of the inside of which consists of two intersecting circles in the form of a figure eight labelled 3 and each having a diameter d h .
  • the central points 4 of the kneading discs 1 are displaced in one direction by an eccentricity (e) 5 relative to the central points 6 of the housing circles.
  • the clearance (s) 7 between the kneading discs 1 is constant, while the clearance ( ⁇ ) 8 between the kneading discs 1 and the wall 9 is always greater than (s) and depends on the rotation conditions of the discs 1.
  • FIG. 2 shows a longitudinal section of the kneading discs 1 which rotate about the shaft 11 and wherein the ratio of the width (W) 10 to the diameter of the kneading disc (d e ) 1 is from 0.05 to 5, preferably from 0.1 to 1.
  • FIG. 3 shows another embodiment of the present invention wherein zones Z1 of single flight or multi flight screw threads are combined with zones Z2 of kneading discs. As can be seen therein, the free cross-section between the kneading discs and the housing 2 is reduced in each case relative to that of the screw threads of the screw zones Z1.
  • FIG. 4 another embodiment is shown wherein zones Z2 of kneading discs are combined with zones Z3 of eccentric discs which almost scrape the inner walls of the housing 9.
  • This device combines the mixing and kneading advantages of the eccentric kneading zones according to the invention with the conveying properties of known eccentric discs which scrape the walls of the housing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
US06/248,118 1980-04-16 1981-03-27 Twin-screw machine with screws rotatable in the same direction Expired - Lifetime US4352568A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3014643 1980-04-16
DE19803014643 DE3014643A1 (de) 1980-04-16 1980-04-16 Gleichsinnig rotierbare doppelschnecke

Publications (1)

Publication Number Publication Date
US4352568A true US4352568A (en) 1982-10-05

Family

ID=6100207

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/248,118 Expired - Lifetime US4352568A (en) 1980-04-16 1981-03-27 Twin-screw machine with screws rotatable in the same direction

Country Status (5)

Country Link
US (1) US4352568A (enrdf_load_stackoverflow)
EP (1) EP0037984B1 (enrdf_load_stackoverflow)
JP (1) JPS56162626A (enrdf_load_stackoverflow)
CA (1) CA1158233A (enrdf_load_stackoverflow)
DE (2) DE3014643A1 (enrdf_load_stackoverflow)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4556324A (en) * 1984-05-01 1985-12-03 E. I. Du Pont De Nemours And Company Apparatus for forming films of constant thickness
US4824256A (en) * 1984-04-02 1989-04-25 Werner & Pfleiderer Co-rotating twin-screw kneaders with kneading disks
US5267788A (en) * 1992-01-31 1993-12-07 Farrel Corporation Multi-screw, continuous mixing and kneading machine with polygonal kneading elements for plasticizable compounds
US5499870A (en) * 1993-11-12 1996-03-19 Maschinenfabrik S. Rockstedt Gmbh Multiscrew, continuous mixing machine for plasticizable compounds
EP0788868A1 (en) * 1996-02-07 1997-08-13 POMINI S.p.A. Process and machine for the mixing with continuous rolling of thermoplastic material
CN1037400C (zh) * 1987-11-27 1998-02-18 布勒公司 面食品用面团的制作方法
EP0850738A3 (en) * 1996-12-24 1998-09-09 KABUSHIKI KAISHA KOBE SEIKO SHO also known as Kobe Steel Ltd. Twin-screw kneading apparatus
US5816697A (en) * 1995-12-05 1998-10-06 Teijin Limited Viscous liquid stirring device and a process for producing polycarbonate by using the stirring device
US6033103A (en) * 1997-11-24 2000-03-07 Bayer Aktiengesellschaft Mixing device
US20030185090A1 (en) * 2000-10-17 2003-10-02 Toshiyuki Otsuka Closed kneader
US20040094862A1 (en) * 2000-10-10 2004-05-20 Achim-Philipp Sturm Multi-screw extruder and method for treating and/or processing elastomers with added filler
EP1541870A3 (en) * 2003-12-11 2005-12-28 Spreafico Vittorino & Fratelli S.R.l. Extruder and related extrusion process
US20110112255A1 (en) * 2008-06-20 2011-05-12 Bayer Technology Services Gmbh Single-Flighted Screw Elements With a Reduced Tip Angle
WO2012007501A1 (de) * 2010-07-14 2012-01-19 Bayer Materialscience Ag Vorrichtung und verfahren zur herstellung von produkten aus pigmenthaltigen polymermischungen
CN103056979A (zh) * 2012-12-20 2013-04-24 华南理工大学 基于偏心螺旋的高分子材料连续密炼过程强化方法及装置
US20140061547A1 (en) * 2012-09-06 2014-03-06 Toyota Jidosha Kabushiki Kaisha Electrode paste production device and electrode paste production method
CN106731975A (zh) * 2017-01-24 2017-05-31 山东华鹏精机股份有限公司 炭素强力混捏缸体
US20170173543A1 (en) * 2014-02-13 2017-06-22 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Continuous kneading device
RU2709864C1 (ru) * 2016-03-16 2019-12-23 Саус Чайна Юниверсити Оф Текнолоджи Способ и устройство для двухосной или трехосной объемной пульсирующей деформационной пластикации с помощью эксцентриковых роторов
CN114521170A (zh) * 2019-10-16 2022-05-20 株式会社瑞光 旋转挤出机

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2173414A (en) * 1985-04-09 1986-10-15 Farrel Bridge Ltd Mixer for rubber or plastics material
JPH0636092B2 (ja) * 1987-08-18 1994-05-11 新王子製紙株式会社 写真印画紙用支持体の製造方法
DE3841728C1 (de) * 1988-12-10 1990-03-01 Hermann Berstorff Maschinenbau Gmbh, 30627 Hannover Ein- oder Doppelschneckenextruder zum Einarbeiten von pulverförmigen oder faserförmigen Additiven in eine thermoplastische Kunststoffschmelze
FR2697839B1 (fr) * 1992-11-09 1995-01-13 Inst Francais Du Petrole Procédé amélioré de récupération de téréphtalate de métal alcalin et d'alkylène glycol à partir de polytéréphtalates d'alkylènes.
US5545746A (en) * 1993-11-09 1996-08-13 Institut Francais Du Petrole Method for recovery of alkali metal or alkaline-earth metal terephthalate and of alkylene glycol from polyethylene terephthalates
DE19718292A1 (de) * 1997-04-30 1998-11-05 Krupp Werner & Pfleiderer Gmbh Mehrwellen-Schneckenmaschine, insbesondere Zwei-Wellen-Extruder
GB2335375B (en) * 1998-03-19 2002-02-13 J R Dare Ltd Two-roll mixing mill
DE19947967A1 (de) * 1998-10-05 2000-04-06 Krupp Werner & Pfleiderer Gmbh Gleichdralldoppelschneckenextruder
DE102004010553B4 (de) * 2004-03-04 2013-12-12 Coperion Gmbh Schneckenmaschine
JP5635047B2 (ja) * 2012-09-07 2014-12-03 株式会社日本製鋼所 二軸スクリュ押出機及び混練方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3749375A (en) * 1971-02-19 1973-07-31 Werner & Pfleiderer Process for mixing, kneading and granulating thermosetting plastic material in continuous operation
US3856278A (en) * 1972-10-07 1974-12-24 Werner & Pfleiderer Twin-screw extruder with adjustable throttling means
US4299499A (en) * 1979-06-20 1981-11-10 Werner & Pfleiderer Throttle device for a twin-shafted screw machine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2670188A (en) * 1949-09-23 1954-02-23 Bayer Ag Mixing and kneading machine
US3122356A (en) * 1958-08-23 1964-02-25 Bayer Ag Worm arrangement

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3749375A (en) * 1971-02-19 1973-07-31 Werner & Pfleiderer Process for mixing, kneading and granulating thermosetting plastic material in continuous operation
US3856278A (en) * 1972-10-07 1974-12-24 Werner & Pfleiderer Twin-screw extruder with adjustable throttling means
US4299499A (en) * 1979-06-20 1981-11-10 Werner & Pfleiderer Throttle device for a twin-shafted screw machine

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4824256A (en) * 1984-04-02 1989-04-25 Werner & Pfleiderer Co-rotating twin-screw kneaders with kneading disks
US4556324A (en) * 1984-05-01 1985-12-03 E. I. Du Pont De Nemours And Company Apparatus for forming films of constant thickness
CN1037400C (zh) * 1987-11-27 1998-02-18 布勒公司 面食品用面团的制作方法
US5267788A (en) * 1992-01-31 1993-12-07 Farrel Corporation Multi-screw, continuous mixing and kneading machine with polygonal kneading elements for plasticizable compounds
US5499870A (en) * 1993-11-12 1996-03-19 Maschinenfabrik S. Rockstedt Gmbh Multiscrew, continuous mixing machine for plasticizable compounds
US5816697A (en) * 1995-12-05 1998-10-06 Teijin Limited Viscous liquid stirring device and a process for producing polycarbonate by using the stirring device
EP0788868A1 (en) * 1996-02-07 1997-08-13 POMINI S.p.A. Process and machine for the mixing with continuous rolling of thermoplastic material
EP0850738A3 (en) * 1996-12-24 1998-09-09 KABUSHIKI KAISHA KOBE SEIKO SHO also known as Kobe Steel Ltd. Twin-screw kneading apparatus
US5947593A (en) * 1996-12-24 1999-09-07 Kabushiki Kaisha Kobe Seiko Sho Twin-screw kneading apparatus
US6033103A (en) * 1997-11-24 2000-03-07 Bayer Aktiengesellschaft Mixing device
US20040094862A1 (en) * 2000-10-10 2004-05-20 Achim-Philipp Sturm Multi-screw extruder and method for treating and/or processing elastomers with added filler
US20030185090A1 (en) * 2000-10-17 2003-10-02 Toshiyuki Otsuka Closed kneader
US6913379B2 (en) * 2000-10-17 2005-07-05 Moriyama Co., Ltd. Closed kneader
EP1541870A3 (en) * 2003-12-11 2005-12-28 Spreafico Vittorino & Fratelli S.R.l. Extruder and related extrusion process
US20110112255A1 (en) * 2008-06-20 2011-05-12 Bayer Technology Services Gmbh Single-Flighted Screw Elements With a Reduced Tip Angle
US9561613B2 (en) 2010-07-14 2017-02-07 Covestro Deutschland Ag Apparatus and process for producing products from pigment-containing polymer mixtures
CN103003050A (zh) * 2010-07-14 2013-03-27 拜耳知识产权有限责任公司 用于由含颜料的聚合物混合物制备产品的设备和方法
EP2593288B1 (de) 2010-07-14 2017-10-11 Covestro Deutschland AG Vorrichtung und verfahren zur herstellung von produkten aus pigmenthaltigen polymermischungen
WO2012007501A1 (de) * 2010-07-14 2012-01-19 Bayer Materialscience Ag Vorrichtung und verfahren zur herstellung von produkten aus pigmenthaltigen polymermischungen
TWI577530B (zh) * 2010-07-14 2017-04-11 科思創德意志股份有限公司 製造複合色料之方法與設備
CN103003050B (zh) * 2010-07-14 2016-02-24 拜耳知识产权有限责任公司 用于由含颜料的聚合物混合物制备产品的设备和方法
US20140061547A1 (en) * 2012-09-06 2014-03-06 Toyota Jidosha Kabushiki Kaisha Electrode paste production device and electrode paste production method
US9630344B2 (en) * 2012-09-06 2017-04-25 Toyota Jidosha Kabushiki Kaisha Electrode paste production device and electrode paste production method
CN103056979B (zh) * 2012-12-20 2015-10-28 华南理工大学 基于偏心螺旋的高分子材料连续密炼过程强化方法及装置
CN103056979A (zh) * 2012-12-20 2013-04-24 华南理工大学 基于偏心螺旋的高分子材料连续密炼过程强化方法及装置
US20170173543A1 (en) * 2014-02-13 2017-06-22 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Continuous kneading device
US10449498B2 (en) * 2014-02-13 2019-10-22 Kobe Steel, Ltd. Continuous kneading device
RU2709864C1 (ru) * 2016-03-16 2019-12-23 Саус Чайна Юниверсити Оф Текнолоджи Способ и устройство для двухосной или трехосной объемной пульсирующей деформационной пластикации с помощью эксцентриковых роторов
CN106731975A (zh) * 2017-01-24 2017-05-31 山东华鹏精机股份有限公司 炭素强力混捏缸体
CN114521170A (zh) * 2019-10-16 2022-05-20 株式会社瑞光 旋转挤出机

Also Published As

Publication number Publication date
JPS56162626A (en) 1981-12-14
DE3160260D1 (en) 1983-06-16
EP0037984B1 (de) 1983-05-11
EP0037984A1 (de) 1981-10-21
JPS6364288B2 (enrdf_load_stackoverflow) 1988-12-12
DE3014643A1 (de) 1981-10-22
CA1158233A (en) 1983-12-06

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